rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=be9/1/0x4000000000000000 softirq=82973/82973 fqs=0
(detected by 0, t=10502 jiffies, g=135565, q=418)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2975 Comm: systemd-udevd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__this_cpu_preempt_check+0xd/0x20 lib/smp_processor_id.c:66
Code: 00 00 48 c7 c6 20 19 05 8a 48 c7 c7 60 19 05 8a e9 78 fe ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 0f 1f 44 00 00 48 89 ee 5d <48> c7 c7 a0 19 05 8a e9 57 fe ff ff cc cc cc cc cc cc cc 0f 1f 44
RSP: 0018:ffffc90000dc0d88 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff89ac0fe0 RDI: ffffffff89ac0fe0
RBP: ffff888016c7d300 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff875e8ca8 R11: 0000000000000000 R12: ffff88807a65d700
R13: 0000000000000001 R14: 00000000ffffffff R15: ffff88807a65e188
FS: 00007f0a3db2c8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005615292ea348 CR3: 000000001c531000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
lock_is_held_type+0xd7/0x140 kernel/locking/lockdep.c:5681
lock_is_held include/linux/lockdep.h:283 [inline]
advance_sched+0xfa/0x9a0 net/sched/sch_taprio.c:719
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x22/0x80 kernel/kcov.c:273
Code: 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 70 02 00 48 89 ce 4c 8b 54 24 08 e8 4e f7 ff ff <84> c0 74 51 48 8b 81 88 15 00 00 44 8b 81 84 15 00 00 48 8b 10 49
RSP: 0018:ffffc900027df858 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffff88807a65d700
RDX: 0000000000000000 RSI: ffff88807a65d700 RDI: 0000000000000003
RBP: ffff888021d3cd80 R08: 0000000000000000 R09: 0000000000000005
R10: ffffffff83a302aa R11: 0000000000000010 R12: 0000000000000001
R13: 000000000000012b R14: dffffc0000000000 R15: 0000000000000000
tomoyo_domain_quota_is_ok+0x32a/0x550 security/tomoyo/util.c:1092
tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838
security_inode_getattr+0xcf/0x140 security/security.c:1334
vfs_getattr fs/stat.c:157 [inline]
vfs_statx+0x164/0x390 fs/stat.c:225
vfs_fstatat fs/stat.c:243 [inline]
vfs_lstat include/linux/fs.h:3358 [inline]
__do_sys_newlstat+0x91/0x110 fs/stat.c:398
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0a3c99e335
Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffd3f855a98 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 00005615292b2ad0 RCX: 00007f0a3c99e335
RDX: 00007ffd3f855ad0 RSI: 00007ffd3f855ad0 RDI: 00005615292b1ad0
RBP: 00007ffd3f855b90 R08: 00007f0a3cc5d228 R09: 0000000000001010
R10: 00007f0a3cc5cb58 R11: 0000000000000246 R12: 00005615292b1ad0
R13: 00005615292b1aea R14: 00005615292c0e15 R15: 00005615292c0e1a
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g135565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=56447
rcu: rcu_preempt kthread starved for 10502 jiffies! g135565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:28688 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2975 Comm: systemd-udevd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
RIP: 0010:lock_is_held_type+0xe4/0x140 kernel/locking/lockdep.c:5681
Code: f6 47 22 03 0f 95 c0 45 31 ed 44 39 f0 41 0f 94 c5 48 c7 c7 e0 0f ac 89 e8 a9 0d 00 00 b8 ff ff ff ff 65 0f c1 05 4c ab be 76 <83> f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01
RSP: 0018:ffffc90000dc0d90 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000010001 RDI: 0000000000000000
RBP: ffff888016c7d300 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520001b81ac R11: 0000000000000000 R12: ffff88807a65d700
R13: 0000000000000001 R14: 00000000ffffffff R15: ffff88807a65e188
FS: 00007f0a3db2c8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005615292ea348 CR3: 000000001c531000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
advance_sched+0x60/0x9a0 net/sched/sch_taprio.c:715
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x22/0x80 kernel/kcov.c:273
Code: 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 70 02 00 48 89 ce 4c 8b 54 24 08 e8 4e f7 ff ff <84> c0 74 51 48 8b 81 88 15 00 00 44 8b 81 84 15 00 00 48 8b 10 49
RSP: 0018:ffffc900027df858 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffff88807a65d700
RDX: 0000000000000000 RSI: ffff88807a65d700 RDI: 0000000000000003
RBP: ffff888021d3cd80 R08: 0000000000000000 R09: 0000000000000005
R10: ffffffff83a302aa R11: 0000000000000010 R12: 0000000000000001
R13: 000000000000012b R14: dffffc0000000000 R15: 0000000000000000
tomoyo_domain_quota_is_ok+0x32a/0x550 security/tomoyo/util.c:1092
tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838
security_inode_getattr+0xcf/0x140 security/security.c:1334
vfs_getattr fs/stat.c:157 [inline]
vfs_statx+0x164/0x390 fs/stat.c:225
vfs_fstatat fs/stat.c:243 [inline]
vfs_lstat include/linux/fs.h:3358 [inline]
__do_sys_newlstat+0x91/0x110 fs/stat.c:398
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0a3c99e335
Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffd3f855a98 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 00005615292b2ad0 RCX: 00007f0a3c99e335
RDX: 00007ffd3f855ad0 RSI: 00007ffd3f855ad0 RDI: 00005615292b1ad0
RBP: 00007ffd3f855b90 R08: 00007f0a3cc5d228 R09: 0000000000001010
R10: 00007f0a3cc5cb58 R11: 0000000000000246 R12: 00005615292b1ad0
R13: 00005615292b1aea R14: 00005615292c0e15 R15: 00005615292c0e1a
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 c7 c6 20 19 05 8a mov $0xffffffff8a051920,%rsi
9: 48 c7 c7 60 19 05 8a mov $0xffffffff8a051960,%rdi
10: e9 78 fe ff ff jmpq 0xfffffe8d
15: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
1c: 00
1d: 55 push %rbp
1e: 48 89 fd mov %rdi,%rbp
21: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
26: 48 89 ee mov %rbp,%rsi
29: 5d pop %rbp
* 2a: 48 c7 c7 a0 19 05 8a mov $0xffffffff8a0519a0,%rdi <-- trapping instruction
31: e9 57 fe ff ff jmpq 0xfffffe8d
36: cc int3
37: cc int3
38: cc int3
39: cc int3
3a: cc int3
3b: cc int3
3c: cc int3
3d: 0f .byte 0xf
3e: 1f (bad)
3f: 44 rex.R